How do you find the range of each function given the domain: g(m)=m^2; {-2,0,2}?

1 Answer
Sep 12, 2017

The set of numbers y such that 0 <= y <= 4

Explanation:

For this one, all you have to do is plug some numbers in.
If m = 0, then y = g(m) = 0.

y = g(m) is always >=0, becase if m is negative, m^2 is positive.

At m = -2 and 2, y = g(m) = 4. For y to be greater than 4, m would have to be greater than 2 (or less than -2).

So your range is between 0 and 4, inclusive.

GOOD LUCK!